Global Time Difference Directory

How to use this directory

This directory lists all 70 major cities in our database, organized by geographic region. Click any city to see its time difference from every other city in the world, along with current local time, business hour overlap analysis, and a link to schedule a meeting across those time zones.

Understanding time differences

The time difference between two cities is determined by their UTC offsets. For example, New York (UTC-5) and London (UTC+0) have a 5-hour difference. However, this can change by ±1 hour during daylight saving time transitions, because the US and UK change clocks on different dates. Our directory accounts for these DST variations automatically.

Planning meetings across time zones

For each city pair, you can use the Meeting Planner to find the fairest overlapping business hours. The planner uses a fairness algorithm that scores each hour by how disruptive it is for all participants, then suggests the slots with the lowest total disruption. This is especially useful for teams spanning 3+ time zones.